NO. Sine is opposite/hypotenuse, so the answer should be 24/25
Answer:
D.) 89.33°
Step-by-step explanation:
Use the inverse:
Insert this value into a calculator:
Round to the nearest hundredth:
The missing value is 89.33°.
Answer:
The 95 % confidence interval for the mean is between 28.09 and 35.97.
Step-by-step explanation:
Mean of the sample:
30 values.
So we sum all the values and divide by 30.
The sum of all the values(43 + 52 + 18 + ... + 20 + 41) is 961.
961/30 = 32.03
Confidence interval:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 32.03 - 3.94 = 28.09
The upper end of the interval is the sample mean added to M. So it is 32.03 + 3.94 = 35.97
The 95 % confidence interval for the mean is between 28.09 and 35.97.
Answer:
None
Step-by-step explanation:
The sum of the inner angles of a triangle must be 180. Instead, you have
So, a figure with these angles can't be a triangle.
The phrase "5 less than" means we are subtracting 5 from some amount. And that amount is 15
So, 15 - 5 is the answer.